公开(公告)号：US20250138234A1

公开(公告)日：2025-05-01

申请号：US18975158

申请日：2024-12-10

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Vikraman Parthiban

IPC: F21V8/00 ,  G02B5/18 ,  G02B6/10 ,  G02B27/00 ,  G02B27/01 ,  G02B27/42 ,  G02F1/29 ,  H04N9/31

Abstract: In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides. The respective FOVs are such that the plurality of waveguides are configured to diffract the visible light within a combined FOV that is continuous and greater than each of the respective FOVs

公开(公告)号：US12216288B2

公开(公告)日：2025-02-04

申请号：US18322401

申请日：2023-05-23

Applicant: Magic Leap, Inc.

Inventor： Hui-Chuan Cheng ,  Chulwoo Oh ,  Clinton Carlisle ,  Michael Anthony Klug ,  William J. Molteni, Jr.

IPC: G02B27/09 ,  G02B27/01 ,  G02B27/10 ,  G06T19/00

Abstract: Illuminations systems that separate different colors into laterally displaced beams may be used to direct different color image content into an eyepiece for displaying images in the eye. Such an eyepiece may be used, for example, for an augmented reality head mounted display. Illumination systems may be provided that utilize one or more waveguides to direct light from a light source towards a spatial light modulator. Light from the spatial light modulator may be directed towards an eyepiece. Some aspects of the invention provide for light of different colors to be outcoupled at different angles from the one or more waveguides and directed along different beam paths.

公开(公告)号：US12189128B2

公开(公告)日：2025-01-07

申请号：US18297191

申请日：2023-04-07

Applicant: Magic Leap, Inc.

Inventor： Ivan Li Chuen Yeoh ,  Lionel Ernest Edwin ,  Nicole Elizabeth Samec ,  Nastasja U. Robaina ,  Vaibhav Mathur ,  Timothy Mark Dalrymple ,  Jason Schaefer ,  Clinton Carlisle ,  Hui-Chuan Cheng ,  Chulwoo Oh ,  Philip Premysler ,  Xiaoyang Zhang ,  Adam C. Carlson

IPC: G02B27/01 ,  G02B27/00 ,  G06T15/00 ,  G06T19/00 ,  H04N13/279 ,  H04N13/341 ,  H04N13/344 ,  H04N13/383 ,  H04N13/395 ,  H04N13/398

Abstract: Methods and systems for depth-based foveated rendering in the display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include monitoring eye orientations of a user of a display system based on detected sensor information. A fixation point is determined based on the eye orientations, the fixation point representing a three-dimensional location with respect to a field of view. Location information of virtual objects to present is obtained, with the location information indicating three-dimensional positions of the virtual objects. Resolutions of at least one virtual object is adjusted based on a proximity of the at least one virtual object to the fixation point. The virtual objects are presented to a user by display system with the at least one virtual object being rendered according to the adjusted resolution.

公开(公告)号：US20240345402A1

公开(公告)日：2024-10-17

申请号：US18753101

申请日：2024-06-25

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri

IPC: G02B27/01 ,  G06F3/01

CPC classification number: G02B27/0172 ,  G06F3/013 ,  G02B2027/0123 ,  G02B2027/0138

Abstract: A thin transparent layer can be integrated in a head mounted display device and disposed in front of the eye of a wearer. The thin transparent layer may be configured to output light such that light is directed onto the eye to create reflections therefrom that can be used, for example, for glint based tracking. The thin transparent layer can be configured to reduced obstructions in the field of the view of the user.

公开(公告)号：US12055726B2

公开(公告)日：2024-08-06

申请号：US18342451

申请日：2023-06-27

Applicant: Magic Leap, Inc.

Inventor： Chunyu Gao ,  Chulwoo Oh ,  Michael Anthony Klug ,  Evyatar Bluzer

IPC: G02B27/01 ,  F21V8/00 ,  G02B27/00 ,  G06T19/00 ,  H04N13/332 ,  H04N13/344 ,  H04N13/383

CPC classification number: G02B27/0172 ,  G02B27/0093 ,  G02B27/0179 ,  G06T19/006 ,  H04N13/332 ,  H04N13/344 ,  H04N13/383 ,  G02B6/0076 ,  G02B2027/0123 ,  G02B2027/0127 ,  G02B2027/0134 ,  G02B2027/0138 ,  G02B2027/0178 ,  G02B2027/0185 ,  G02B2027/0187 ,  H04N2213/001

Abstract: Examples of eye-imaging apparatus using diffractive optical elements are provided. For example, an optical device comprises a substrate having a proximal surface and a distal surface, a first coupling optical element disposed on one of the proximal and distal surfaces of the substrate, and a second coupling optical element disposed on one of the proximal and distal surfaces of the substrate and offset from the first coupling optical element. The first coupling optical element can be configured to deflect light at an angle to totally internally reflect (TIR) the light between the proximal and distal surfaces and toward the second coupling optical element, and the second coupling optical element can be configured to deflect at an angle out of the substrate. The eye-imaging apparatus can be used in a head-mounted display such as an augmented or virtual reality display.

公开(公告)号：US12050318B2

公开(公告)日：2024-07-30

申请号：US17279428

申请日：2019-09-25

Applicant: Magic Leap, Inc.

Inventor： Asif Sinay ,  Nizan Meitav ,  Chulwoo Oh ,  Barak Freedman ,  Michael Anthony Klug ,  Adam C. Carlson

IPC: G02B27/01 ,  F21V8/00 ,  G02B27/42

CPC classification number: G02B27/0172 ,  G02B6/0023 ,  G02B6/005 ,  G02B27/4205 ,  G02B2027/0138 ,  G02B2027/0178

Abstract: A head mounted display system can include a camera, at least one waveguide, at least one coupling optical element that is configured such that light is coupled into said waveguide and guided therein, and at least one out-coupling element. The at least one out-coupling element can be configured to couple light that is guided within said waveguide out of said waveguide and direct said light to said camera. The at least one coupling element may comprise a diffractive optical element having optical power. Additionally or alternatively, the at least one coupling optical element may have a coupling area for coupling light into said waveguide having an average thickness in a range from 0.1 to 3 millimeters across and/or may have a slit shaped coupling area.

公开(公告)号：US11940639B2

公开(公告)日：2024-03-26

申请号：US17211457

申请日：2021-03-24

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri ,  David Kleinman ,  Vaibhav Mathur ,  David Manly

IPC: G02B5/30 ,  F21V8/00 ,  G02B5/08 ,  G02B27/01 ,  G02F1/1335

CPC classification number: G02B5/305 ,  G02B5/0808 ,  G02B5/3058 ,  G02B5/3083 ,  G02B6/0076 ,  G02B27/0172 ,  G02F1/133528 ,  G02B2207/101

Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.

公开(公告)号：US20230341695A1

公开(公告)日：2023-10-26

申请号：US18344416

申请日：2023-06-29

Applicant: Magic Leap, Inc.

Inventor： Asif SINAY ,  Nizan MEITAV ,  Chulwoo Oh ,  Barak FREEDMAN ,  Michael Anthony Klug ,  Adam C. CARLSON

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B2027/0107 ,  G02B2027/0138 ,  G02B2027/0178 ,  G02B2027/0187

Abstract: A head mounted display system can include a camera, at least one waveguide, at least one coupling optical element that is configured such that light is coupled into said waveguide and guided therein, and at least one out-coupling element. The at least one out-coupling element can be configured to couple light that is guided within said waveguide out of said waveguide and direct said light to said camera. The at least one coupling element may comprise a diffractive optical element having optical power.

公开(公告)号：US20230314890A1

公开(公告)日：2023-10-05

申请号：US18207607

申请日：2023-06-08

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh

IPC: G02F1/137 ,  F21V8/00 ,  G02F1/133 ,  G02B27/01 ,  G02B26/08 ,  G02F1/29

CPC classification number: G02F1/137 ,  G02B6/0055 ,  G02B6/0056 ,  G02F1/13306 ,  G02B6/0088 ,  G02B27/0172 ,  G02B6/0076 ,  G02B6/0026 ,  G02F1/13718 ,  G02B26/0825 ,  G02F1/29 ,  G02F2203/07

Abstract: Example display devices include a waveguide configured to propagate visible light under total internal reflection in a direction parallel to a major surface of the waveguide. The waveguide has formed thereon an outcoupling element configured to outcouple a portion of the visible light in a direction normal to the major surface of the waveguide. The example display devices additionally include a polarization-selective notch reflector disposed on a first side of the waveguide and configured to reflect visible light having a first polarization while transmitting the portion of the visible light having a second polarization. The example display devices further include a polarization-independent notch reflector disposed on a second side of the waveguide and configured to reflect visible light having the first polarization and the second polarization, where the polarization-independent notch reflector is configured to convert a polarization of visible light reflecting therefrom.

公开(公告)号：US11609480B2

公开(公告)日：2023-03-21

申请号：US17143039

申请日：2021-01-06

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh

IPC: G02F1/365 ,  G02B3/00 ,  G02F1/00 ,  G02F1/1335

Abstract: A two-dimensional waveguide light multiplexer is described herein that can efficiently multiplex and distribute a light signal in two dimensions. An example of a two-dimensional waveguide light multiplexer can include a waveguide, a first diffraction grating, and a second diffraction grating disposed above the first diffraction grating and arranged such that the grating direction of the first diffraction grating is perpendicular to the grating direction of the second diffraction grating. Methods of fabricating a two-dimensional waveguide light multiplexer are also disclosed.